Nebula palette
Sooty Parlor
From #0057ab ink through #2d81e2, #4e9eff, #6fafff to #a4ccff light, Sooty Parlor is a complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skynebulafive-stop
#0057ab
#2d81e2
#4e9eff
#6fafff
#a4ccff
The generator opens with #0057ab as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.